Issue
See Machado-Allison & Castillo (1992: 19) for detailed morphology.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό; pH range: 5.0 - 7.8; dH range: ? - 20; ποταμόδρομος (Ref. 51243). Tropical; 22°C - 28°C (Ref. 1672)
South America: rio Paraguai, lower Paraná and lower Uruguai rivers basins.
Length at first maturity / Μέγεθος / Βάρος / Age
Maturity: Lm ?, range 17 - ? cm
Max length : 25.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 39031); μεγ. δημοσιευμένο βάρος: 1.0 kg (Ref. )
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Σπόνδυλοι: 35 - 36. This species differs from M. aureum by having the last abdominal spine reaching the anal-fin origin or almost so (vs. last abdominal spine clearly separated from the anal-fin origin), vertebrae 35-36 (vs. 38-39), and a conspicuous black blotch on opercle (vs. no black blotch or inconspicuous); differs from M. albiscopum by anal-fin with branched rays 26-32 (vs. 31-38); differs from M. unimaculatum by having circumpeduncular scales 30-34 (vs. 34-40), perforated scales on lateral line 74-98 (vs. 95-110) and vertebrae 35-36 (vs. 37) (Ref. 117280).
Reported to be an herbivore fish, which is highly dependent from the floodplains and of great economic importance for both commercial and sport fisheries (Ref. 117280).
Mateussi, N.T.B., C. Oliveira and C.S. Pavanelli, 2018. Taxonomic revision of the Cis-Andean species of Mylossoma Eigenmann & Kennedy, 1903 (Teleostei: Characiformes: Serrasalmidae). Zootaxa 4387(2):275-309. (Ref. 117280)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
αλιεία: Εμπορικό(ά); Ενυδρείο: Εμπορικό(ά)
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02512 (0.01329 - 0.04746), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 2.8 ±0.36 se; based on food items.
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (21 of 100).
Nutrients (Ref.
124155): Calcium = 110 [51, 257] mg/100g; Iron = 1.53 [0.77, 3.44] mg/100g; Protein = 17.7 [15.7, 19.8] %; Omega3 = 0.393 [0.149, 1.113] g/100g; Selenium = 89.5 [34.0, 207.2] μg/100g; VitaminA = 28.6 [9.3, 83.5] μg/100g; Zinc = 1.84 [1.23, 2.68] mg/100g (wet weight); based on
nutrient studies.